Swiveling cannons in shoreline fortifications
circa 1861-1865
Gardner, Alexander, 1821-1882
The image shows two different kinds of cannons looking out of shoreline fortifications. The guns are built on wheels and a track so that they can swivel. Inscription on verso: "Gardner." Numeric notations on verso: "1132" and "M-1-132."
GLC05111.01.1138